This will be my first reply on any forum, I'm getting younger I think! Not sure at all what your using or tools available but just an idea. If you are going to put legs on the top grate, just let them stand on the bottom grate. That's what I did but I had expanded metal for grates and a welder to attach legs. Food for thought. That way the u-bolts won't get in the way removing the bottom grate.
QUOTE=Toadly_Smoked;2617214]Doing some homework to build the "Ultimate UDS". This is what I am thinking now, what do you "UDS Masters" think.
Starting with a 55 gal drum and do the normal, burn, wire wheel and paint.
Now instead of using bolts to support the rack, use 4 Ubolts. Then make a second rack with legs that will sit into the Ubolts.